git.sur5r.net Git - openocd/blob - src/target/target.c

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25 #include "target.h"
  26 #include "target_request.h"
  27
  28 #include "log.h"
  29 #include "configuration.h"
  30 #include "binarybuffer.h"
  31 #include "jtag.h"
  32
  33 #include <string.h>
  34 #include <stdlib.h>
  35 #include <inttypes.h>
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <unistd.h>
  40 #include <errno.h>
  41
  42 #include <sys/time.h>
  43 #include <time.h>
  44
  45 #include <time_support.h>
  46
  47 #include <fileio.h>
  48 #include <image.h>
  49
  50 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  51
  52
  53 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55
  56 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59
  60 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  78 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  79
  80 /* targets
  81  */
  82 extern target_type_t arm7tdmi_target;
  83 extern target_type_t arm720t_target;
  84 extern target_type_t arm9tdmi_target;
  85 extern target_type_t arm920t_target;
  86 extern target_type_t arm966e_target;
  87 extern target_type_t arm926ejs_target;
  88 extern target_type_t feroceon_target;
  89 extern target_type_t xscale_target;
  90 extern target_type_t cortexm3_target;
  91 extern target_type_t arm11_target;
  92
  93 target_type_t *target_types[] =
  94 {
  95         &arm7tdmi_target,
  96         &arm9tdmi_target,
  97         &arm920t_target,
  98         &arm720t_target,
  99         &arm966e_target,
 100         &arm926ejs_target,
 101         &feroceon_target,
 102         &xscale_target,
 103         &cortexm3_target,
 104         &arm11_target,
 105         NULL,
 106 };
 107
 108 target_t *targets = NULL;
 109 target_event_callback_t *target_event_callbacks = NULL;
 110 target_timer_callback_t *target_timer_callbacks = NULL;
 111
 112 char *target_state_strings[] =
 113 {
 114         "unknown",
 115         "running",
 116         "halted",
 117         "reset",
 118         "debug_running",
 119 };
 120
 121 char *target_debug_reason_strings[] =
 122 {
 123         "debug request", "breakpoint", "watchpoint",
 124         "watchpoint and breakpoint", "single step",
 125         "target not halted", "undefined"
 126 };
 127
 128 char *target_endianess_strings[] =
 129 {
 130         "big endian",
 131         "little endian",
 132 };
 133
 134 static int target_continous_poll = 1;
 135
 136 /* read a u32 from a buffer in target memory endianness */
 137 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 138 {
 139         if (target->endianness == TARGET_LITTLE_ENDIAN)
 140                 return le_to_h_u32(buffer);
 141         else
 142                 return be_to_h_u32(buffer);
 143 }
 144
 145 /* read a u16 from a buffer in target memory endianness */
 146 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 147 {
 148         if (target->endianness == TARGET_LITTLE_ENDIAN)
 149                 return le_to_h_u16(buffer);
 150         else
 151                 return be_to_h_u16(buffer);
 152 }
 153
 154 /* write a u32 to a buffer in target memory endianness */
 155 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 156 {
 157         if (target->endianness == TARGET_LITTLE_ENDIAN)
 158                 h_u32_to_le(buffer, value);
 159         else
 160                 h_u32_to_be(buffer, value);
 161 }
 162
 163 /* write a u16 to a buffer in target memory endianness */
 164 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 165 {
 166         if (target->endianness == TARGET_LITTLE_ENDIAN)
 167                 h_u16_to_le(buffer, value);
 168         else
 169                 h_u16_to_be(buffer, value);
 170 }
 171
 172 /* returns a pointer to the n-th configured target */
 173 target_t* get_target_by_num(int num)
 174 {
 175         target_t *target = targets;
 176         int i = 0;
 177
 178         while (target)
 179         {
 180                 if (num == i)
 181                         return target;
 182                 target = target->next;
 183                 i++;
 184         }
 185
 186         return NULL;
 187 }
 188
 189 int get_num_by_target(target_t *query_target)
 190 {
 191         target_t *target = targets;
 192         int i = 0;
 193
 194         while (target)
 195         {
 196                 if (target == query_target)
 197                         return i;
 198                 target = target->next;
 199                 i++;
 200         }
 201
 202         return -1;
 203 }
 204
 205 target_t* get_current_target(command_context_t *cmd_ctx)
 206 {
 207         target_t *target = get_target_by_num(cmd_ctx->current_target);
 208
 209         if (target == NULL)
 210         {
 211                 LOG_ERROR("BUG: current_target out of bounds");
 212                 exit(-1);
 213         }
 214
 215         return target;
 216 }
 217
 218 /* Process target initialization, when target entered debug out of reset
 219  * the handler is unregistered at the end of this function, so it's only called once
 220  */
 221 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 222 {
 223         FILE *script;
 224         struct command_context_s *cmd_ctx = priv;
 225
 226         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 227         {
 228                 target_unregister_event_callback(target_init_handler, priv);
 229
 230                 script = open_file_from_path(target->reset_script, "r");
 231                 if (!script)
 232                 {
 233                         LOG_ERROR("couldn't open script file %s", target->reset_script);
 234                                 return ERROR_OK;
 235                 }
 236
 237                 LOG_INFO("executing reset script '%s'", target->reset_script);
 238                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 239                 fclose(script);
 240
 241                 jtag_execute_queue();
 242         }
 243
 244         return ERROR_OK;
 245 }
 246
 247 int target_run_and_halt_handler(void *priv)
 248 {
 249         target_t *target = priv;
 250
 251         target_halt(target);
 252
 253         return ERROR_OK;
 254 }
 255
 256 int target_poll(struct target_s *target)
 257 {
 258         /* We can't poll until after examine */
 259         if (!target->type->examined)
 260         {
 261                 /* Fail silently lest we pollute the log */
 262                 return ERROR_FAIL;
 263         }
 264         return target->type->poll(target);
 265 }
 266
 267 int target_halt(struct target_s *target)
 268 {
 269         /* We can't poll until after examine */
 270         if (!target->type->examined)
 271         {
 272                 LOG_ERROR("Target not examined yet");
 273                 return ERROR_FAIL;
 274         }
 275         return target->type->halt(target);
 276 }
 277
 278 int target_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
 279 {
 280         /* We can't poll until after examine */
 281         if (!target->type->examined)
 282         {
 283                 LOG_ERROR("Target not examined yet");
 284                 return ERROR_FAIL;
 285         }
 286         return target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 287 }
 288
 289
 290 int target_process_reset(struct command_context_s *cmd_ctx)
 291 {
 292         int retval = ERROR_OK;
 293         target_t *target;
 294         struct timeval timeout, now;
 295
 296         jtag->speed(jtag_speed);
 297
 298         if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
 299                 return retval;
 300
 301         if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
 302                 return retval;
 303
 304         /* prepare reset_halt where necessary */
 305         target = targets;
 306         while (target)
 307         {
 308                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 309                 {
 310                         switch (target->reset_mode)
 311                         {
 312                                 case RESET_HALT:
 313                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
 314                                         target->reset_mode = RESET_RUN_AND_HALT;
 315                                         break;
 316                                 case RESET_INIT:
 317                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
 318                                         target->reset_mode = RESET_RUN_AND_INIT;
 319                                         break;
 320                                 default:
 321                                         break;
 322                         }
 323                 }
 324                 target = target->next;
 325         }
 326
 327         target = targets;
 328         while (target)
 329         {
 330                 /* we have no idea what state the target is in, so we
 331                  * have to drop working areas
 332                  */
 333                 target_free_all_working_areas_restore(target, 0);
 334                 target->type->assert_reset(target);
 335                 target = target->next;
 336         }
 337         if ((retval = jtag_execute_queue()) != ERROR_OK)
 338         {
 339                 LOG_WARNING("JTAG communication failed asserting reset.");
 340                 retval = ERROR_OK;
 341         }
 342
 343         /* request target halt if necessary, and schedule further action */
 344         target = targets;
 345         while (target)
 346         {
 347                 switch (target->reset_mode)
 348                 {
 349                         case RESET_RUN:
 350                                 /* nothing to do if target just wants to be run */
 351                                 break;
 352                         case RESET_RUN_AND_HALT:
 353                                 /* schedule halt */
 354                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 355                                 break;
 356                         case RESET_RUN_AND_INIT:
 357                                 /* schedule halt */
 358                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 359                                 target_register_event_callback(target_init_handler, cmd_ctx);
 360                                 break;
 361                         case RESET_HALT:
 362                                 target_halt(target);
 363                                 break;
 364                         case RESET_INIT:
 365                                 target_halt(target);
 366                                 target_register_event_callback(target_init_handler, cmd_ctx);
 367                                 break;
 368                         default:
 369                                 LOG_ERROR("BUG: unknown target->reset_mode");
 370                 }
 371                 target = target->next;
 372         }
 373
 374         if ((retval = jtag_execute_queue()) != ERROR_OK)
 375         {
 376                 LOG_WARNING("JTAG communication failed while reset was asserted. Consider using srst_only for reset_config.");
 377                 retval = ERROR_OK;
 378         }
 379
 380         target = targets;
 381         while (target)
 382         {
 383                 target->type->deassert_reset(target);
 384                 target = target->next;
 385         }
 386
 387         if ((retval = jtag_execute_queue()) != ERROR_OK)
 388         {
 389                 LOG_WARNING("JTAG communication failed while deasserting reset.");
 390                 retval = ERROR_OK;
 391         }
 392
 393         LOG_DEBUG("Waiting for halted stated as approperiate");
 394
 395         /* Wait for reset to complete, maximum 5 seconds. */
 396         gettimeofday(&timeout, NULL);
 397         timeval_add_time(&timeout, 5, 0);
 398         for(;;)
 399         {
 400                 gettimeofday(&now, NULL);
 401
 402                 target_call_timer_callbacks_now();
 403
 404                 target = targets;
 405                 while (target)
 406                 {
 407                         LOG_DEBUG("Polling target");
 408                         target_poll(target);
 409                         if ((target->reset_mode == RESET_RUN_AND_INIT) ||
 410                                         (target->reset_mode == RESET_RUN_AND_HALT) ||
 411                                         (target->reset_mode == RESET_HALT) ||
 412                                         (target->reset_mode == RESET_INIT))
 413                         {
 414                                 if (target->state != TARGET_HALTED)
 415                                 {
 416                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 417                                         {
 418                                                 LOG_USER("Timed out waiting for halt after reset");
 419                                                 goto done;
 420                                         }
 421                                         /* this will send alive messages on e.g. GDB remote protocol. */
 422                                         usleep(500*1000);
 423                                         LOG_USER_N("%s", ""); /* avoid warning about zero length formatting message*/
 424                                         goto again;
 425                                 }
 426                         }
 427                         target = target->next;
 428                 }
 429                 /* All targets we're waiting for are halted */
 430                 break;
 431
 432                 again:;
 433         }
 434         done:
 435
 436
 437         /* We want any events to be processed before the prompt */
 438         target_call_timer_callbacks_now();
 439
 440         /* if we timed out we need to unregister these handlers */
 441         target = targets;
 442         while (target)
 443         {
 444                 target_unregister_timer_callback(target_run_and_halt_handler, target);
 445                 target = target->next;
 446         }
 447         target_unregister_event_callback(target_init_handler, cmd_ctx);
 448
 449
 450         jtag->speed(jtag_speed_post_reset);
 451
 452         return retval;
 453 }
 454
 455 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 456 {
 457         *physical = virtual;
 458         return ERROR_OK;
 459 }
 460
 461 static int default_mmu(struct target_s *target, int *enabled)
 462 {
 463         *enabled = 0;
 464         return ERROR_OK;
 465 }
 466
 467 static int default_examine(struct command_context_s *cmd_ctx, struct target_s *target)
 468 {
 469         target->type->examined = 1;
 470         return ERROR_OK;
 471 }
 472
 473
 474 /* Targets that correctly implement init+examine, i.e.
 475  * no communication with target during init:
 476  *
 477  * XScale
 478  */
 479 int target_examine(struct command_context_s *cmd_ctx)
 480 {
 481         int retval = ERROR_OK;
 482         target_t *target = targets;
 483         while (target)
 484         {
 485                 if ((retval = target->type->examine(cmd_ctx, target))!=ERROR_OK)
 486                         return retval;
 487                 target = target->next;
 488         }
 489         return retval;
 490 }
 491
 492
 493 int target_init(struct command_context_s *cmd_ctx)
 494 {
 495         target_t *target = targets;
 496
 497         while (target)
 498         {
 499                 target->type->examined = 0;
 500                 if (target->type->examine == NULL)
 501                 {
 502                         target->type->examine = default_examine;
 503                 }
 504
 505                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 506                 {
 507                         LOG_ERROR("target '%s' init failed", target->type->name);
 508                         exit(-1);
 509                 }
 510
 511                 /* Set up default functions if none are provided by target */
 512                 if (target->type->virt2phys == NULL)
 513                 {
 514                         target->type->virt2phys = default_virt2phys;
 515                 }
 516                 if (target->type->mmu == NULL)
 517                 {
 518                         target->type->mmu = default_mmu;
 519                 }
 520                 target = target->next;
 521         }
 522
 523         if (targets)
 524         {
 525                 target_register_user_commands(cmd_ctx);
 526                 target_register_timer_callback(handle_target, 100, 1, NULL);
 527         }
 528
 529         return ERROR_OK;
 530 }
 531
 532 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 533 {
 534         target_event_callback_t **callbacks_p = &target_event_callbacks;
 535
 536         if (callback == NULL)
 537         {
 538                 return ERROR_INVALID_ARGUMENTS;
 539         }
 540
 541         if (*callbacks_p)
 542         {
 543                 while ((*callbacks_p)->next)
 544                         callbacks_p = &((*callbacks_p)->next);
 545                 callbacks_p = &((*callbacks_p)->next);
 546         }
 547
 548         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 549         (*callbacks_p)->callback = callback;
 550         (*callbacks_p)->priv = priv;
 551         (*callbacks_p)->next = NULL;
 552
 553         return ERROR_OK;
 554 }
 555
 556 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 557 {
 558         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 559         struct timeval now;
 560
 561         if (callback == NULL)
 562         {
 563                 return ERROR_INVALID_ARGUMENTS;
 564         }
 565
 566         if (*callbacks_p)
 567         {
 568                 while ((*callbacks_p)->next)
 569                         callbacks_p = &((*callbacks_p)->next);
 570                 callbacks_p = &((*callbacks_p)->next);
 571         }
 572
 573         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 574         (*callbacks_p)->callback = callback;
 575         (*callbacks_p)->periodic = periodic;
 576         (*callbacks_p)->time_ms = time_ms;
 577
 578         gettimeofday(&now, NULL);
 579         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 580         time_ms -= (time_ms % 1000);
 581         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 582         if ((*callbacks_p)->when.tv_usec > 1000000)
 583         {
 584                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 585                 (*callbacks_p)->when.tv_sec += 1;
 586         }
 587
 588         (*callbacks_p)->priv = priv;
 589         (*callbacks_p)->next = NULL;
 590
 591         return ERROR_OK;
 592 }
 593
 594 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 595 {
 596         target_event_callback_t **p = &target_event_callbacks;
 597         target_event_callback_t *c = target_event_callbacks;
 598
 599         if (callback == NULL)
 600         {
 601                 return ERROR_INVALID_ARGUMENTS;
 602         }
 603
 604         while (c)
 605         {
 606                 target_event_callback_t *next = c->next;
 607                 if ((c->callback == callback) && (c->priv == priv))
 608                 {
 609                         *p = next;
 610                         free(c);
 611                         return ERROR_OK;
 612                 }
 613                 else
 614                         p = &(c->next);
 615                 c = next;
 616         }
 617
 618         return ERROR_OK;
 619 }
 620
 621 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 622 {
 623         target_timer_callback_t **p = &target_timer_callbacks;
 624         target_timer_callback_t *c = target_timer_callbacks;
 625
 626         if (callback == NULL)
 627         {
 628                 return ERROR_INVALID_ARGUMENTS;
 629         }
 630
 631         while (c)
 632         {
 633                 target_timer_callback_t *next = c->next;
 634                 if ((c->callback == callback) && (c->priv == priv))
 635                 {
 636                         *p = next;
 637                         free(c);
 638                         return ERROR_OK;
 639                 }
 640                 else
 641                         p = &(c->next);
 642                 c = next;
 643         }
 644
 645         return ERROR_OK;
 646 }
 647
 648 int target_call_event_callbacks(target_t *target, enum target_event event)
 649 {
 650         target_event_callback_t *callback = target_event_callbacks;
 651         target_event_callback_t *next_callback;
 652
 653         LOG_DEBUG("target event %i", event);
 654
 655         while (callback)
 656         {
 657                 next_callback = callback->next;
 658                 callback->callback(target, event, callback->priv);
 659                 callback = next_callback;
 660         }
 661
 662         return ERROR_OK;
 663 }
 664
 665 static int target_call_timer_callbacks_check_time(int checktime)
 666 {
 667         target_timer_callback_t *callback = target_timer_callbacks;
 668         target_timer_callback_t *next_callback;
 669         struct timeval now;
 670
 671         gettimeofday(&now, NULL);
 672
 673         while (callback)
 674         {
 675                 next_callback = callback->next;
 676
 677                 if ((!checktime&&callback->periodic)||
 678                                 (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 679                                                 || (now.tv_sec > callback->when.tv_sec)))
 680                 {
 681                         callback->callback(callback->priv);
 682                         if (callback->periodic)
 683                         {
 684                                 int time_ms = callback->time_ms;
 685                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 686                                 time_ms -= (time_ms % 1000);
 687                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 688                                 if (callback->when.tv_usec > 1000000)
 689                                 {
 690                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 691                                         callback->when.tv_sec += 1;
 692                                 }
 693                         }
 694                         else
 695                                 target_unregister_timer_callback(callback->callback, callback->priv);
 696                 }
 697
 698                 callback = next_callback;
 699         }
 700
 701         return ERROR_OK;
 702 }
 703
 704 int target_call_timer_callbacks()
 705 {
 706         return target_call_timer_callbacks_check_time(1);
 707 }
 708
 709 /* invoke periodic callbacks immediately */
 710 int target_call_timer_callbacks_now()
 711 {
 712         return target_call_timer_callbacks(0);
 713 }
 714
 715
 716 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 717 {
 718         working_area_t *c = target->working_areas;
 719         working_area_t *new_wa = NULL;
 720
 721         /* Reevaluate working area address based on MMU state*/
 722         if (target->working_areas == NULL)
 723         {
 724                 int retval;
 725                 int enabled;
 726                 retval = target->type->mmu(target, &enabled);
 727                 if (retval != ERROR_OK)
 728                 {
 729                         return retval;
 730                 }
 731                 if (enabled)
 732                 {
 733                         target->working_area = target->working_area_virt;
 734                 }
 735                 else
 736                 {
 737                         target->working_area = target->working_area_phys;
 738                 }
 739         }
 740
 741         /* only allocate multiples of 4 byte */
 742         if (size % 4)
 743         {
 744                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 745                 size = CEIL(size, 4);
 746         }
 747
 748         /* see if there's already a matching working area */
 749         while (c)
 750         {
 751                 if ((c->free) && (c->size == size))
 752                 {
 753                         new_wa = c;
 754                         break;
 755                 }
 756                 c = c->next;
 757         }
 758
 759         /* if not, allocate a new one */
 760         if (!new_wa)
 761         {
 762                 working_area_t **p = &target->working_areas;
 763                 u32 first_free = target->working_area;
 764                 u32 free_size = target->working_area_size;
 765
 766                 LOG_DEBUG("allocating new working area");
 767
 768                 c = target->working_areas;
 769                 while (c)
 770                 {
 771                         first_free += c->size;
 772                         free_size -= c->size;
 773                         p = &c->next;
 774                         c = c->next;
 775                 }
 776
 777                 if (free_size < size)
 778                 {
 779                         LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 780                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 781                 }
 782
 783                 new_wa = malloc(sizeof(working_area_t));
 784                 new_wa->next = NULL;
 785                 new_wa->size = size;
 786                 new_wa->address = first_free;
 787
 788                 if (target->backup_working_area)
 789                 {
 790                         new_wa->backup = malloc(new_wa->size);
 791                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 792                 }
 793                 else
 794                 {
 795                         new_wa->backup = NULL;
 796                 }
 797
 798                 /* put new entry in list */
 799                 *p = new_wa;
 800         }
 801
 802         /* mark as used, and return the new (reused) area */
 803         new_wa->free = 0;
 804         *area = new_wa;
 805
 806         /* user pointer */
 807         new_wa->user = area;
 808
 809         return ERROR_OK;
 810 }
 811
 812 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
 813 {
 814         if (area->free)
 815                 return ERROR_OK;
 816
 817         if (restore&&target->backup_working_area)
 818                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 819
 820         area->free = 1;
 821
 822         /* mark user pointer invalid */
 823         *area->user = NULL;
 824         area->user = NULL;
 825
 826         return ERROR_OK;
 827 }
 828
 829 int target_free_working_area(struct target_s *target, working_area_t *area)
 830 {
 831         return target_free_working_area_restore(target, area, 1);
 832 }
 833
 834 int target_free_all_working_areas_restore(struct target_s *target, int restore)
 835 {
 836         working_area_t *c = target->working_areas;
 837
 838         while (c)
 839         {
 840                 working_area_t *next = c->next;
 841                 target_free_working_area_restore(target, c, restore);
 842
 843                 if (c->backup)
 844                         free(c->backup);
 845
 846                 free(c);
 847
 848                 c = next;
 849         }
 850
 851         target->working_areas = NULL;
 852
 853         return ERROR_OK;
 854 }
 855
 856 int target_free_all_working_areas(struct target_s *target)
 857 {
 858         return target_free_all_working_areas_restore(target, 1);
 859 }
 860
 861 int target_register_commands(struct command_context_s *cmd_ctx)
 862 {
 863         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
 864         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 865         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 866         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
 867         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 868         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 869         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
 870
 871         return ERROR_OK;
 872 }
 873
 874 int target_arch_state(struct target_s *target)
 875 {
 876         int retval;
 877         if (target==NULL)
 878         {
 879                 LOG_USER("No target has been configured");
 880                 return ERROR_OK;
 881         }
 882
 883         LOG_USER("target state: %s", target_state_strings[target->state]);
 884
 885         if (target->state!=TARGET_HALTED)
 886                 return ERROR_OK;
 887
 888         retval=target->type->arch_state(target);
 889         return retval;
 890 }
 891
 892 /* Single aligned words are guaranteed to use 16 or 32 bit access
 893  * mode respectively, otherwise data is handled as quickly as
 894  * possible
 895  */
 896 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 897 {
 898         int retval;
 899         if (!target->type->examined)
 900         {
 901                 LOG_ERROR("Target not examined yet");
 902                 return ERROR_FAIL;
 903         }
 904
 905         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 906
 907         if (((address % 2) == 0) && (size == 2))
 908         {
 909                 return target->type->write_memory(target, address, 2, 1, buffer);
 910         }
 911
 912         /* handle unaligned head bytes */
 913         if (address % 4)
 914         {
 915                 int unaligned = 4 - (address % 4);
 916
 917                 if (unaligned > size)
 918                         unaligned = size;
 919
 920                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 921                         return retval;
 922
 923                 buffer += unaligned;
 924                 address += unaligned;
 925                 size -= unaligned;
 926         }
 927
 928         /* handle aligned words */
 929         if (size >= 4)
 930         {
 931                 int aligned = size - (size % 4);
 932
 933                 /* use bulk writes above a certain limit. This may have to be changed */
 934                 if (aligned > 128)
 935                 {
 936                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 937                                 return retval;
 938                 }
 939                 else
 940                 {
 941                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 942                                 return retval;
 943                 }
 944
 945                 buffer += aligned;
 946                 address += aligned;
 947                 size -= aligned;
 948         }
 949
 950         /* handle tail writes of less than 4 bytes */
 951         if (size > 0)
 952         {
 953                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 954                         return retval;
 955         }
 956
 957         return ERROR_OK;
 958 }
 959
 960
 961 /* Single aligned words are guaranteed to use 16 or 32 bit access
 962  * mode respectively, otherwise data is handled as quickly as
 963  * possible
 964  */
 965 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 966 {
 967         int retval;
 968         if (!target->type->examined)
 969         {
 970                 LOG_ERROR("Target not examined yet");
 971                 return ERROR_FAIL;
 972         }
 973
 974         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 975
 976         if (((address % 2) == 0) && (size == 2))
 977         {
 978                 return target->type->read_memory(target, address, 2, 1, buffer);
 979         }
 980
 981         /* handle unaligned head bytes */
 982         if (address % 4)
 983         {
 984                 int unaligned = 4 - (address % 4);
 985
 986                 if (unaligned > size)
 987                         unaligned = size;
 988
 989                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 990                         return retval;
 991
 992                 buffer += unaligned;
 993                 address += unaligned;
 994                 size -= unaligned;
 995         }
 996
 997         /* handle aligned words */
 998         if (size >= 4)
 999         {
1000                 int aligned = size - (size % 4);
1001
1002                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1003                         return retval;
1004
1005                 buffer += aligned;
1006                 address += aligned;
1007                 size -= aligned;
1008         }
1009
1010         /* handle tail writes of less than 4 bytes */
1011         if (size > 0)
1012         {
1013                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
1014                         return retval;
1015         }
1016
1017         return ERROR_OK;
1018 }
1019
1020 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
1021 {
1022         u8 *buffer;
1023         int retval;
1024         int i;
1025         u32 checksum = 0;
1026         if (!target->type->examined)
1027         {
1028                 LOG_ERROR("Target not examined yet");
1029                 return ERROR_FAIL;
1030         }
1031
1032         if ((retval = target->type->checksum_memory(target, address,
1033                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1034         {
1035                 buffer = malloc(size);
1036                 if (buffer == NULL)
1037                 {
1038                         LOG_ERROR("error allocating buffer for section (%d bytes)", size);
1039                         return ERROR_INVALID_ARGUMENTS;
1040                 }
1041                 retval = target_read_buffer(target, address, size, buffer);
1042                 if (retval != ERROR_OK)
1043                 {
1044                         free(buffer);
1045                         return retval;
1046                 }
1047
1048                 /* convert to target endianess */
1049                 for (i = 0; i < (size/sizeof(u32)); i++)
1050                 {
1051                         u32 target_data;
1052                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
1053                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
1054                 }
1055
1056                 retval = image_calculate_checksum( buffer, size, &checksum );
1057                 free(buffer);
1058         }
1059
1060         *crc = checksum;
1061
1062         return retval;
1063 }
1064
1065 int target_read_u32(struct target_s *target, u32 address, u32 *value)
1066 {
1067         u8 value_buf[4];
1068         if (!target->type->examined)
1069         {
1070                 LOG_ERROR("Target not examined yet");
1071                 return ERROR_FAIL;
1072         }
1073
1074         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
1075
1076         if (retval == ERROR_OK)
1077         {
1078                 *value = target_buffer_get_u32(target, value_buf);
1079                 LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
1080         }
1081         else
1082         {
1083                 *value = 0x0;
1084                 LOG_DEBUG("address: 0x%8.8x failed", address);
1085         }
1086
1087         return retval;
1088 }
1089
1090 int target_read_u16(struct target_s *target, u32 address, u16 *value)
1091 {
1092         u8 value_buf[2];
1093         if (!target->type->examined)
1094         {
1095                 LOG_ERROR("Target not examined yet");
1096                 return ERROR_FAIL;
1097         }
1098
1099         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
1100
1101         if (retval == ERROR_OK)
1102         {
1103                 *value = target_buffer_get_u16(target, value_buf);
1104                 LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1105         }
1106         else
1107         {
1108                 *value = 0x0;
1109                 LOG_DEBUG("address: 0x%8.8x failed", address);
1110         }
1111
1112         return retval;
1113 }
1114
1115 int target_read_u8(struct target_s *target, u32 address, u8 *value)
1116 {
1117         int retval = target->type->read_memory(target, address, 1, 1, value);
1118         if (!target->type->examined)
1119         {
1120                 LOG_ERROR("Target not examined yet");
1121                 return ERROR_FAIL;
1122         }
1123
1124         if (retval == ERROR_OK)
1125         {
1126                 LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1127         }
1128         else
1129         {
1130                 *value = 0x0;
1131                 LOG_DEBUG("address: 0x%8.8x failed", address);
1132         }
1133
1134         return retval;
1135 }
1136
1137 int target_write_u32(struct target_s *target, u32 address, u32 value)
1138 {
1139         int retval;
1140         u8 value_buf[4];
1141         if (!target->type->examined)
1142         {
1143                 LOG_ERROR("Target not examined yet");
1144                 return ERROR_FAIL;
1145         }
1146
1147         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1148
1149         target_buffer_set_u32(target, value_buf, value);
1150         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1151         {
1152                 LOG_DEBUG("failed: %i", retval);
1153         }
1154
1155         return retval;
1156 }
1157
1158 int target_write_u16(struct target_s *target, u32 address, u16 value)
1159 {
1160         int retval;
1161         u8 value_buf[2];
1162         if (!target->type->examined)
1163         {
1164                 LOG_ERROR("Target not examined yet");
1165                 return ERROR_FAIL;
1166         }
1167
1168         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1169
1170         target_buffer_set_u16(target, value_buf, value);
1171         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1172         {
1173                 LOG_DEBUG("failed: %i", retval);
1174         }
1175
1176         return retval;
1177 }
1178
1179 int target_write_u8(struct target_s *target, u32 address, u8 value)
1180 {
1181         int retval;
1182         if (!target->type->examined)
1183         {
1184                 LOG_ERROR("Target not examined yet");
1185                 return ERROR_FAIL;
1186         }
1187
1188         LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1189
1190         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1191         {
1192                 LOG_DEBUG("failed: %i", retval);
1193         }
1194
1195         return retval;
1196 }
1197
1198 int target_register_user_commands(struct command_context_s *cmd_ctx)
1199 {
1200         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1201         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1202         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1203         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1204         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1205         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1206         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
1207         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1208
1209         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1210         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1211         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1212
1213         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1214         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1215         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1216
1217         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1218         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1219         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1220         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1221
1222         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
1223         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1224         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1225         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
1226         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
1227
1228         target_request_register_commands(cmd_ctx);
1229         trace_register_commands(cmd_ctx);
1230
1231         return ERROR_OK;
1232 }
1233
1234 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1235 {
1236         target_t *target = targets;
1237         int count = 0;
1238
1239         if (argc == 1)
1240         {
1241                 int num = strtoul(args[0], NULL, 0);
1242
1243                 while (target)
1244                 {
1245                         count++;
1246                         target = target->next;
1247                 }
1248
1249                 if (num < count)
1250                         cmd_ctx->current_target = num;
1251                 else
1252                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1253
1254                 return ERROR_OK;
1255         }
1256
1257         while (target)
1258         {
1259                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1260                 target = target->next;
1261         }
1262
1263         return ERROR_OK;
1264 }
1265
1266 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1267 {
1268         int i;
1269         int found = 0;
1270
1271         if (argc < 3)
1272         {
1273                 return ERROR_COMMAND_SYNTAX_ERROR;
1274         }
1275
1276         /* search for the specified target */
1277         if (args[0] && (args[0][0] != 0))
1278         {
1279                 for (i = 0; target_types[i]; i++)
1280                 {
1281                         if (strcmp(args[0], target_types[i]->name) == 0)
1282                         {
1283                                 target_t **last_target_p = &targets;
1284
1285                                 /* register target specific commands */
1286                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1287                                 {
1288                                         LOG_ERROR("couldn't register '%s' commands", args[0]);
1289                                         exit(-1);
1290                                 }
1291
1292                                 if (*last_target_p)
1293                                 {
1294                                         while ((*last_target_p)->next)
1295                                                 last_target_p = &((*last_target_p)->next);
1296                                         last_target_p = &((*last_target_p)->next);
1297                                 }
1298
1299                                 *last_target_p = malloc(sizeof(target_t));
1300
1301                                 (*last_target_p)->type = target_types[i];
1302
1303                                 if (strcmp(args[1], "big") == 0)
1304                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1305                                 else if (strcmp(args[1], "little") == 0)
1306                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1307                                 else
1308                                 {
1309                                         LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1310                                         return ERROR_COMMAND_SYNTAX_ERROR;
1311                                 }
1312
1313                                 /* what to do on a target reset */
1314                                 (*last_target_p)->reset_mode = RESET_INIT; /* default */
1315                                 if (strcmp(args[2], "reset_halt") == 0)
1316                                         (*last_target_p)->reset_mode = RESET_HALT;
1317                                 else if (strcmp(args[2], "reset_run") == 0)
1318                                         (*last_target_p)->reset_mode = RESET_RUN;
1319                                 else if (strcmp(args[2], "reset_init") == 0)
1320                                         (*last_target_p)->reset_mode = RESET_INIT;
1321                                 else if (strcmp(args[2], "run_and_halt") == 0)
1322                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1323                                 else if (strcmp(args[2], "run_and_init") == 0)
1324                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1325                                 else
1326                                 {
1327                                         /* Kludge! we want to make this reset arg optional while remaining compatible! */
1328                                         args--;
1329                                         argc++;
1330                                 }
1331                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1332
1333                                 (*last_target_p)->reset_script = NULL;
1334                                 (*last_target_p)->post_halt_script = NULL;
1335                                 (*last_target_p)->pre_resume_script = NULL;
1336                                 (*last_target_p)->gdb_program_script = NULL;
1337
1338                                 (*last_target_p)->working_area = 0x0;
1339                                 (*last_target_p)->working_area_size = 0x0;
1340                                 (*last_target_p)->working_areas = NULL;
1341                                 (*last_target_p)->backup_working_area = 0;
1342
1343                                 (*last_target_p)->state = TARGET_UNKNOWN;
1344                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1345                                 (*last_target_p)->reg_cache = NULL;
1346                                 (*last_target_p)->breakpoints = NULL;
1347                                 (*last_target_p)->watchpoints = NULL;
1348                                 (*last_target_p)->next = NULL;
1349                                 (*last_target_p)->arch_info = NULL;
1350
1351                                 /* initialize trace information */
1352                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1353                                 (*last_target_p)->trace_info->num_trace_points = 0;
1354                                 (*last_target_p)->trace_info->trace_points_size = 0;
1355                                 (*last_target_p)->trace_info->trace_points = NULL;
1356                                 (*last_target_p)->trace_info->trace_history_size = 0;
1357                                 (*last_target_p)->trace_info->trace_history = NULL;
1358                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1359                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1360
1361                                 (*last_target_p)->dbgmsg = NULL;
1362                                 (*last_target_p)->dbg_msg_enabled = 0;
1363
1364                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1365
1366                                 found = 1;
1367                                 break;
1368                         }
1369                 }
1370         }
1371
1372         /* no matching target found */
1373         if (!found)
1374         {
1375                 LOG_ERROR("target '%s' not found", args[0]);
1376                 return ERROR_COMMAND_SYNTAX_ERROR;
1377         }
1378
1379         return ERROR_OK;
1380 }
1381
1382 /* usage: target_script <target#> <event> <script_file> */
1383 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1384 {
1385         target_t *target = NULL;
1386
1387         if (argc < 3)
1388         {
1389                 LOG_ERROR("incomplete target_script command");
1390                 return ERROR_COMMAND_SYNTAX_ERROR;
1391         }
1392
1393         target = get_target_by_num(strtoul(args[0], NULL, 0));
1394
1395         if (!target)
1396         {
1397                 return ERROR_COMMAND_SYNTAX_ERROR;
1398         }
1399
1400         if (strcmp(args[1], "reset") == 0)
1401         {
1402                 if (target->reset_script)
1403                         free(target->reset_script);
1404                 target->reset_script = strdup(args[2]);
1405         }
1406         else if (strcmp(args[1], "post_halt") == 0)
1407         {
1408                 if (target->post_halt_script)
1409                         free(target->post_halt_script);
1410                 target->post_halt_script = strdup(args[2]);
1411         }
1412         else if (strcmp(args[1], "pre_resume") == 0)
1413         {
1414                 if (target->pre_resume_script)
1415                         free(target->pre_resume_script);
1416                 target->pre_resume_script = strdup(args[2]);
1417         }
1418         else if (strcmp(args[1], "gdb_program_config") == 0)
1419         {
1420                 if (target->gdb_program_script)
1421                         free(target->gdb_program_script);
1422                 target->gdb_program_script = strdup(args[2]);
1423         }
1424         else
1425         {
1426                 LOG_ERROR("unknown event type: '%s", args[1]);
1427                 return ERROR_COMMAND_SYNTAX_ERROR;
1428         }
1429
1430         return ERROR_OK;
1431 }
1432
1433 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1434 {
1435         target_t *target = NULL;
1436
1437         if (argc < 2)
1438         {
1439                 return ERROR_COMMAND_SYNTAX_ERROR;
1440         }
1441
1442         target = get_target_by_num(strtoul(args[0], NULL, 0));
1443         if (!target)
1444         {
1445                 return ERROR_COMMAND_SYNTAX_ERROR;
1446         }
1447
1448         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1449
1450         return ERROR_OK;
1451 }
1452
1453 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1454 {
1455         target_t *target = NULL;
1456
1457         if ((argc < 4) || (argc > 5))
1458         {
1459                 return ERROR_COMMAND_SYNTAX_ERROR;
1460         }
1461
1462         target = get_target_by_num(strtoul(args[0], NULL, 0));
1463         if (!target)
1464         {
1465                 return ERROR_COMMAND_SYNTAX_ERROR;
1466         }
1467         target_free_all_working_areas(target);
1468
1469         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1470         if (argc == 5)
1471         {
1472                 target->working_area_virt = strtoul(args[4], NULL, 0);
1473         }
1474         target->working_area_size = strtoul(args[2], NULL, 0);
1475
1476         if (strcmp(args[3], "backup") == 0)
1477         {
1478                 target->backup_working_area = 1;
1479         }
1480         else if (strcmp(args[3], "nobackup") == 0)
1481         {
1482                 target->backup_working_area = 0;
1483         }
1484         else
1485         {
1486                 LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1487                 return ERROR_COMMAND_SYNTAX_ERROR;
1488         }
1489
1490         return ERROR_OK;
1491 }
1492
1493
1494 /* process target state changes */
1495 int handle_target(void *priv)
1496 {
1497         target_t *target = targets;
1498
1499         while (target)
1500         {
1501                 if (target_continous_poll)
1502                 {
1503                         /* polling may fail silently until the target has been examined */
1504                         target_poll(target);
1505                 }
1506
1507                 target = target->next;
1508         }
1509
1510         return ERROR_OK;
1511 }
1512
1513 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1514 {
1515         target_t *target;
1516         reg_t *reg = NULL;
1517         int count = 0;
1518         char *value;
1519
1520         LOG_DEBUG("-");
1521
1522         target = get_current_target(cmd_ctx);
1523
1524         /* list all available registers for the current target */
1525         if (argc == 0)
1526         {
1527                 reg_cache_t *cache = target->reg_cache;
1528
1529                 count = 0;
1530                 while(cache)
1531                 {
1532                         int i;
1533                         for (i = 0; i < cache->num_regs; i++)
1534                         {
1535                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1536                                 command_print(cmd_ctx, "(%i) %s (/%i): 0x%s (dirty: %i, valid: %i)", count++, cache->reg_list[i].name, cache->reg_list[i].size, value, cache->reg_list[i].dirty, cache->reg_list[i].valid);
1537                                 free(value);
1538                         }
1539                         cache = cache->next;
1540                 }
1541
1542                 return ERROR_OK;
1543         }
1544
1545         /* access a single register by its ordinal number */
1546         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1547         {
1548                 int num = strtoul(args[0], NULL, 0);
1549                 reg_cache_t *cache = target->reg_cache;
1550
1551                 count = 0;
1552                 while(cache)
1553                 {
1554                         int i;
1555                         for (i = 0; i < cache->num_regs; i++)
1556                         {
1557                                 if (count++ == num)
1558                                 {
1559                                         reg = &cache->reg_list[i];
1560                                         break;
1561                                 }
1562                         }
1563                         if (reg)
1564                                 break;
1565                         cache = cache->next;
1566                 }
1567
1568                 if (!reg)
1569                 {
1570                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1571                         return ERROR_OK;
1572                 }
1573         } else /* access a single register by its name */
1574         {
1575                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1576
1577                 if (!reg)
1578                 {
1579                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1580                         return ERROR_OK;
1581                 }
1582         }
1583
1584         /* display a register */
1585         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1586         {
1587                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1588                         reg->valid = 0;
1589
1590                 if (reg->valid == 0)
1591                 {
1592                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1593                         if (arch_type == NULL)
1594                         {
1595                                 LOG_ERROR("BUG: encountered unregistered arch type");
1596                                 return ERROR_OK;
1597                         }
1598                         arch_type->get(reg);
1599                 }
1600                 value = buf_to_str(reg->value, reg->size, 16);
1601                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1602                 free(value);
1603                 return ERROR_OK;
1604         }
1605
1606         /* set register value */
1607         if (argc == 2)
1608         {
1609                 u8 *buf = malloc(CEIL(reg->size, 8));
1610                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1611
1612                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1613                 if (arch_type == NULL)
1614                 {
1615                         LOG_ERROR("BUG: encountered unregistered arch type");
1616                         return ERROR_OK;
1617                 }
1618
1619                 arch_type->set(reg, buf);
1620
1621                 value = buf_to_str(reg->value, reg->size, 16);
1622                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1623                 free(value);
1624
1625                 free(buf);
1626
1627                 return ERROR_OK;
1628         }
1629
1630         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1631
1632         return ERROR_OK;
1633 }
1634
1635 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1636
1637 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1638 {
1639         target_t *target = get_current_target(cmd_ctx);
1640
1641         if (argc == 0)
1642         {
1643                 target_poll(target);
1644                 target_arch_state(target);
1645         }
1646         else
1647         {
1648                 if (strcmp(args[0], "on") == 0)
1649                 {
1650                         target_continous_poll = 1;
1651                 }
1652                 else if (strcmp(args[0], "off") == 0)
1653                 {
1654                         target_continous_poll = 0;
1655                 }
1656                 else
1657                 {
1658                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1659                 }
1660         }
1661
1662
1663         return ERROR_OK;
1664 }
1665
1666 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1667 {
1668         int ms = 5000;
1669
1670         if (argc > 0)
1671         {
1672                 char *end;
1673
1674                 ms = strtoul(args[0], &end, 0) * 1000;
1675                 if (*end)
1676                 {
1677                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1678                         return ERROR_OK;
1679                 }
1680         }
1681
1682         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1683 }
1684
1685 static void target_process_events(struct command_context_s *cmd_ctx)
1686 {
1687         target_t *target = get_current_target(cmd_ctx);
1688         target_poll(target);
1689         target_call_timer_callbacks_now();
1690 }
1691
1692 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1693 {
1694         int retval;
1695         struct timeval timeout, now;
1696         int once=1;
1697         gettimeofday(&timeout, NULL);
1698         timeval_add_time(&timeout, 0, ms * 1000);
1699
1700         target_t *target = get_current_target(cmd_ctx);
1701         for (;;)
1702         {
1703                 if ((retval=target_poll(target))!=ERROR_OK)
1704                         return retval;
1705                 target_call_timer_callbacks_now();
1706                 if (target->state == state)
1707                 {
1708                         break;
1709                 }
1710                 if (once)
1711                 {
1712                         once=0;
1713                         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1714                 }
1715
1716                 gettimeofday(&now, NULL);
1717                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1718                 {
1719                         LOG_ERROR("timed out while waiting for target %s", target_state_strings[state]);
1720                         break;
1721                 }
1722         }
1723
1724         return ERROR_OK;
1725 }
1726
1727 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1728 {
1729         int retval;
1730         target_t *target = get_current_target(cmd_ctx);
1731
1732         LOG_DEBUG("-");
1733
1734         if ((retval = target_halt(target)) != ERROR_OK)
1735         {
1736                 return retval;
1737         }
1738
1739         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1740 }
1741
1742
1743 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1744 {
1745         target_t *target = get_current_target(cmd_ctx);
1746
1747         LOG_USER("requesting target halt and executing a soft reset");
1748
1749         target->type->soft_reset_halt(target);
1750
1751         return ERROR_OK;
1752 }
1753
1754 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1755 {
1756         target_t *target = get_current_target(cmd_ctx);
1757         enum target_reset_mode reset_mode = target->reset_mode;
1758         enum target_reset_mode save = target->reset_mode;
1759
1760         LOG_DEBUG("-");
1761
1762         if (argc >= 1)
1763         {
1764                 if (strcmp("run", args[0]) == 0)
1765                         reset_mode = RESET_RUN;
1766                 else if (strcmp("halt", args[0]) == 0)
1767                         reset_mode = RESET_HALT;
1768                 else if (strcmp("init", args[0]) == 0)
1769                         reset_mode = RESET_INIT;
1770                 else if (strcmp("run_and_halt", args[0]) == 0)
1771                 {
1772                         reset_mode = RESET_RUN_AND_HALT;
1773                         if (argc >= 2)
1774                         {
1775                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1776                         }
1777                 }
1778                 else if (strcmp("run_and_init", args[0]) == 0)
1779                 {
1780                         reset_mode = RESET_RUN_AND_INIT;
1781                         if (argc >= 2)
1782                         {
1783                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1784                         }
1785                 }
1786                 else
1787                 {
1788                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1789                         return ERROR_OK;
1790                 }
1791         }
1792
1793         /* temporarily modify mode of current reset target */
1794         target->reset_mode = reset_mode;
1795
1796         /* reset *all* targets */
1797         target_process_reset(cmd_ctx);
1798
1799         /* Restore default reset mode for this target */
1800     target->reset_mode = save;
1801
1802         return ERROR_OK;
1803 }
1804
1805 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1806 {
1807         int retval;
1808         target_t *target = get_current_target(cmd_ctx);
1809
1810         if (argc == 0)
1811                 retval = target_resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1812         else if (argc == 1)
1813                 retval = target_resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1814         else
1815         {
1816                 return ERROR_COMMAND_SYNTAX_ERROR;
1817         }
1818
1819         target_process_events(cmd_ctx);
1820
1821         return retval;
1822 }
1823
1824 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1825 {
1826         target_t *target = get_current_target(cmd_ctx);
1827
1828         LOG_DEBUG("-");
1829
1830         if (argc == 0)
1831                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1832
1833         if (argc == 1)
1834                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1835
1836         return ERROR_OK;
1837 }
1838
1839 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1840 {
1841         const int line_bytecnt = 32;
1842         int count = 1;
1843         int size = 4;
1844         u32 address = 0;
1845         int line_modulo;
1846         int i;
1847
1848         char output[128];
1849         int output_len;
1850
1851         int retval;
1852
1853         u8 *buffer;
1854         target_t *target = get_current_target(cmd_ctx);
1855
1856         if (argc < 1)
1857                 return ERROR_OK;
1858
1859         if (argc == 2)
1860                 count = strtoul(args[1], NULL, 0);
1861
1862         address = strtoul(args[0], NULL, 0);
1863
1864
1865         switch (cmd[2])
1866         {
1867                 case 'w':
1868                         size = 4; line_modulo = line_bytecnt / 4;
1869                         break;
1870                 case 'h':
1871                         size = 2; line_modulo = line_bytecnt / 2;
1872                         break;
1873                 case 'b':
1874                         size = 1; line_modulo = line_bytecnt / 1;
1875                         break;
1876                 default:
1877                         return ERROR_OK;
1878         }
1879
1880         buffer = calloc(count, size);
1881         retval  = target->type->read_memory(target, address, size, count, buffer);
1882         if (retval == ERROR_OK)
1883         {
1884                 output_len = 0;
1885
1886                 for (i = 0; i < count; i++)
1887                 {
1888                         if (i%line_modulo == 0)
1889                                 output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1890
1891                         switch (size)
1892                         {
1893                                 case 4:
1894                                         output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1895                                         break;
1896                                 case 2:
1897                                         output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1898                                         break;
1899                                 case 1:
1900                                         output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1901                                         break;
1902                         }
1903
1904                         if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1905                         {
1906                                 command_print(cmd_ctx, output);
1907                                 output_len = 0;
1908                         }
1909                 }
1910         } else
1911         {
1912                 LOG_ERROR("Failure examining memory");
1913         }
1914
1915         free(buffer);
1916
1917         return ERROR_OK;
1918 }
1919
1920 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1921 {
1922         u32 address = 0;
1923         u32 value = 0;
1924         int count = 1;
1925         int i;
1926         int wordsize;
1927         target_t *target = get_current_target(cmd_ctx);
1928         u8 value_buf[4];
1929
1930          if ((argc < 2) || (argc > 3))
1931                 return ERROR_COMMAND_SYNTAX_ERROR;
1932
1933         address = strtoul(args[0], NULL, 0);
1934         value = strtoul(args[1], NULL, 0);
1935         if (argc == 3)
1936                 count = strtoul(args[2], NULL, 0);
1937
1938
1939         switch (cmd[2])
1940         {
1941                 case 'w':
1942                         wordsize = 4;
1943                         target_buffer_set_u32(target, value_buf, value);
1944                         break;
1945                 case 'h':
1946                         wordsize = 2;
1947                         target_buffer_set_u16(target, value_buf, value);
1948                         break;
1949                 case 'b':
1950                         wordsize = 1;
1951                         value_buf[0] = value;
1952                         break;
1953                 default:
1954                         return ERROR_COMMAND_SYNTAX_ERROR;
1955         }
1956         for (i=0; i<count; i++)
1957         {
1958                 int retval;
1959                 switch (wordsize)
1960                 {
1961                         case 4:
1962                                 retval = target->type->write_memory(target, address + i*wordsize, 4, 1, value_buf);
1963                                 break;
1964                         case 2:
1965                                 retval = target->type->write_memory(target, address + i*wordsize, 2, 1, value_buf);
1966                                 break;
1967                         case 1:
1968                                 retval = target->type->write_memory(target, address + i*wordsize, 1, 1, value_buf);
1969                         break;
1970                         default:
1971                         return ERROR_OK;
1972                 }
1973                 if (retval!=ERROR_OK)
1974                 {
1975                         return retval;
1976                 }
1977         }
1978
1979         return ERROR_OK;
1980
1981 }
1982
1983 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1984 {
1985         u8 *buffer;
1986         u32 buf_cnt;
1987         u32 image_size;
1988         int i;
1989         int retval;
1990
1991         image_t image;
1992
1993         duration_t duration;
1994         char *duration_text;
1995
1996         target_t *target = get_current_target(cmd_ctx);
1997
1998         if (argc < 1)
1999         {
2000                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
2001                 return ERROR_OK;
2002         }
2003
2004         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
2005         if (argc >= 2)
2006         {
2007                 image.base_address_set = 1;
2008                 image.base_address = strtoul(args[1], NULL, 0);
2009         }
2010         else
2011         {
2012                 image.base_address_set = 0;
2013         }
2014
2015         image.start_address_set = 0;
2016
2017         duration_start_measure(&duration);
2018
2019         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
2020         {
2021                 return ERROR_OK;
2022         }
2023
2024         image_size = 0x0;
2025         retval = ERROR_OK;
2026         for (i = 0; i < image.num_sections; i++)
2027         {
2028                 buffer = malloc(image.sections[i].size);
2029                 if (buffer == NULL)
2030                 {
2031                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2032                         break;
2033                 }
2034
2035                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2036                 {
2037                         free(buffer);
2038                         break;
2039                 }
2040                 if ((retval = target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer)) != ERROR_OK)
2041                 {
2042                         free(buffer);
2043                         break;
2044                 }
2045                 image_size += buf_cnt;
2046                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
2047
2048                 free(buffer);
2049         }
2050
2051         duration_stop_measure(&duration, &duration_text);
2052         if (retval==ERROR_OK)
2053         {
2054                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
2055         }
2056         free(duration_text);
2057
2058         image_close(&image);
2059
2060         return retval;
2061
2062 }
2063
2064 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2065 {
2066         fileio_t fileio;
2067
2068         u32 address;
2069         u32 size;
2070         u8 buffer[560];
2071         int retval=ERROR_OK;
2072
2073         duration_t duration;
2074         char *duration_text;
2075
2076         target_t *target = get_current_target(cmd_ctx);
2077
2078         if (argc != 3)
2079         {
2080                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
2081                 return ERROR_OK;
2082         }
2083
2084         address = strtoul(args[1], NULL, 0);
2085         size = strtoul(args[2], NULL, 0);
2086
2087         if ((address & 3) || (size & 3))
2088         {
2089                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
2090                 return ERROR_OK;
2091         }
2092
2093         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
2094         {
2095                 return ERROR_OK;
2096         }
2097
2098         duration_start_measure(&duration);
2099
2100         while (size > 0)
2101         {
2102                 u32 size_written;
2103                 u32 this_run_size = (size > 560) ? 560 : size;
2104
2105                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
2106                 if (retval != ERROR_OK)
2107                 {
2108                         break;
2109                 }
2110
2111                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2112                 if (retval != ERROR_OK)
2113                 {
2114                         break;
2115                 }
2116
2117                 size -= this_run_size;
2118                 address += this_run_size;
2119         }
2120
2121         fileio_close(&fileio);
2122
2123         duration_stop_measure(&duration, &duration_text);
2124         if (retval==ERROR_OK)
2125         {
2126                 command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2127         }
2128         free(duration_text);
2129
2130         return ERROR_OK;
2131 }
2132
2133 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2134 {
2135         u8 *buffer;
2136         u32 buf_cnt;
2137         u32 image_size;
2138         int i;
2139         int retval;
2140         u32 checksum = 0;
2141         u32 mem_checksum = 0;
2142
2143         image_t image;
2144
2145         duration_t duration;
2146         char *duration_text;
2147
2148         target_t *target = get_current_target(cmd_ctx);
2149
2150         if (argc < 1)
2151         {
2152                 return ERROR_COMMAND_SYNTAX_ERROR;
2153         }
2154
2155         if (!target)
2156         {
2157                 LOG_ERROR("no target selected");
2158                 return ERROR_FAIL;
2159         }
2160
2161         duration_start_measure(&duration);
2162
2163         if (argc >= 2)
2164         {
2165                 image.base_address_set = 1;
2166                 image.base_address = strtoul(args[1], NULL, 0);
2167         }
2168         else
2169         {
2170                 image.base_address_set = 0;
2171                 image.base_address = 0x0;
2172         }
2173
2174         image.start_address_set = 0;
2175
2176         if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2177         {
2178                 return retval;
2179         }
2180
2181         image_size = 0x0;
2182         retval=ERROR_OK;
2183         for (i = 0; i < image.num_sections; i++)
2184         {
2185                 buffer = malloc(image.sections[i].size);
2186                 if (buffer == NULL)
2187                 {
2188                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2189                         break;
2190                 }
2191                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2192                 {
2193                         free(buffer);
2194                         break;
2195                 }
2196
2197                 /* calculate checksum of image */
2198                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2199
2200                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2201                 if( retval != ERROR_OK )
2202                 {
2203                         free(buffer);
2204                         break;
2205                 }
2206
2207                 if( checksum != mem_checksum )
2208                 {
2209                         /* failed crc checksum, fall back to a binary compare */
2210                         u8 *data;
2211
2212                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2213
2214                         data = (u8*)malloc(buf_cnt);
2215
2216                         /* Can we use 32bit word accesses? */
2217                         int size = 1;
2218                         int count = buf_cnt;
2219                         if ((count % 4) == 0)
2220                         {
2221                                 size *= 4;
2222                                 count /= 4;
2223                         }
2224                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2225                         if (retval == ERROR_OK)
2226                         {
2227                                 int t;
2228                                 for (t = 0; t < buf_cnt; t++)
2229                                 {
2230                                         if (data[t] != buffer[t])
2231                                         {
2232                                                 command_print(cmd_ctx, "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n", t + image.sections[i].base_address, data[t], buffer[t]);
2233                                                 free(data);
2234                                                 free(buffer);
2235                                                 retval=ERROR_FAIL;
2236                                                 goto done;
2237                                         }
2238                                 }
2239                         }
2240
2241                         free(data);
2242                 }
2243
2244                 free(buffer);
2245                 image_size += buf_cnt;
2246         }
2247 done:
2248         duration_stop_measure(&duration, &duration_text);
2249         if (retval==ERROR_OK)
2250         {
2251                 command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2252         }
2253         free(duration_text);
2254
2255         image_close(&image);
2256
2257         return retval;
2258 }
2259
2260 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2261 {
2262         int retval;
2263         target_t *target = get_current_target(cmd_ctx);
2264
2265         if (argc == 0)
2266         {
2267                 breakpoint_t *breakpoint = target->breakpoints;
2268
2269                 while (breakpoint)
2270                 {
2271                         if (breakpoint->type == BKPT_SOFT)
2272                         {
2273                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2274                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2275                                 free(buf);
2276                         }
2277                         else
2278                         {
2279                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2280                         }
2281                         breakpoint = breakpoint->next;
2282                 }
2283         }
2284         else if (argc >= 2)
2285         {
2286                 int hw = BKPT_SOFT;
2287                 u32 length = 0;
2288
2289                 length = strtoul(args[1], NULL, 0);
2290
2291                 if (argc >= 3)
2292                         if (strcmp(args[2], "hw") == 0)
2293                                 hw = BKPT_HARD;
2294
2295                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2296                 {
2297                         LOG_ERROR("Failure setting breakpoints");
2298                 }
2299                 else
2300                 {
2301                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2302                 }
2303         }
2304         else
2305         {
2306                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2307         }
2308
2309         return ERROR_OK;
2310 }
2311
2312 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2313 {
2314         target_t *target = get_current_target(cmd_ctx);
2315
2316         if (argc > 0)
2317                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2318
2319         return ERROR_OK;
2320 }
2321
2322 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2323 {
2324         target_t *target = get_current_target(cmd_ctx);
2325         int retval;
2326
2327         if (argc == 0)
2328         {
2329                 watchpoint_t *watchpoint = target->watchpoints;
2330
2331                 while (watchpoint)
2332                 {
2333                         command_print(cmd_ctx, "address: 0x%8.8x, mask: 0x%8.8x, r/w/a: %i, value: 0x%8.8x, mask: 0x%8.8x", watchpoint->address, watchpoint->length, watchpoint->rw, watchpoint->value, watchpoint->mask);
2334                         watchpoint = watchpoint->next;
2335                 }
2336         }
2337         else if (argc >= 2)
2338         {
2339                 enum watchpoint_rw type = WPT_ACCESS;
2340                 u32 data_value = 0x0;
2341                 u32 data_mask = 0xffffffff;
2342
2343                 if (argc >= 3)
2344                 {
2345                         switch(args[2][0])
2346                         {
2347                                 case 'r':
2348                                         type = WPT_READ;
2349                                         break;
2350                                 case 'w':
2351                                         type = WPT_WRITE;
2352                                         break;
2353                                 case 'a':
2354                                         type = WPT_ACCESS;
2355                                         break;
2356                                 default:
2357                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2358                                         return ERROR_OK;
2359                         }
2360                 }
2361                 if (argc >= 4)
2362                 {
2363                         data_value = strtoul(args[3], NULL, 0);
2364                 }
2365                 if (argc >= 5)
2366                 {
2367                         data_mask = strtoul(args[4], NULL, 0);
2368                 }
2369
2370                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2371                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2372                 {
2373                         LOG_ERROR("Failure setting breakpoints");
2374                 }
2375         }
2376         else
2377         {
2378                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2379         }
2380
2381         return ERROR_OK;
2382 }
2383
2384 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2385 {
2386         target_t *target = get_current_target(cmd_ctx);
2387
2388         if (argc > 0)
2389                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2390
2391         return ERROR_OK;
2392 }
2393
2394 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2395 {
2396         int retval;
2397         target_t *target = get_current_target(cmd_ctx);
2398         u32 va;
2399         u32 pa;
2400
2401         if (argc != 1)
2402         {
2403                 return ERROR_COMMAND_SYNTAX_ERROR;
2404         }
2405         va = strtoul(args[0], NULL, 0);
2406
2407         retval = target->type->virt2phys(target, va, &pa);
2408         if (retval == ERROR_OK)
2409         {
2410                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2411         }
2412         else
2413         {
2414                 /* lower levels will have logged a detailed error which is
2415                  * forwarded to telnet/GDB session.
2416                  */
2417         }
2418         return retval;
2419 }
2420 static void writeLong(FILE *f, int l)
2421 {
2422         int i;
2423         for (i=0; i<4; i++)
2424         {
2425                 char c=(l>>(i*8))&0xff;
2426                 fwrite(&c, 1, 1, f);
2427         }
2428
2429 }
2430 static void writeString(FILE *f, char *s)
2431 {
2432         fwrite(s, 1, strlen(s), f);
2433 }
2434
2435
2436
2437 // Dump a gmon.out histogram file.
2438 static void writeGmon(u32 *samples, int sampleNum, char *filename)
2439 {
2440         int i;
2441         FILE *f=fopen(filename, "w");
2442         if (f==NULL)
2443                 return;
2444         fwrite("gmon", 1, 4, f);
2445         writeLong(f, 0x00000001); // Version
2446         writeLong(f, 0); // padding
2447         writeLong(f, 0); // padding
2448         writeLong(f, 0); // padding
2449
2450         fwrite("", 1, 1, f);  // GMON_TAG_TIME_HIST
2451
2452         // figure out bucket size
2453         u32 min=samples[0];
2454         u32 max=samples[0];
2455         for (i=0; i<sampleNum; i++)
2456         {
2457                 if (min>samples[i])
2458                 {
2459                         min=samples[i];
2460                 }
2461                 if (max<samples[i])
2462                 {
2463                         max=samples[i];
2464                 }
2465         }
2466
2467         int addressSpace=(max-min+1);
2468
2469         static int const maxBuckets=256*1024; // maximum buckets.
2470         int length=addressSpace;
2471         if (length > maxBuckets)
2472         {
2473                 length=maxBuckets;
2474         }
2475         int *buckets=malloc(sizeof(int)*length);
2476         if (buckets==NULL)
2477         {
2478                 fclose(f);
2479                 return;
2480         }
2481         memset(buckets, 0, sizeof(int)*length);
2482         for (i=0; i<sampleNum;i++)
2483         {
2484                 u32 address=samples[i];
2485                 long long a=address-min;
2486                 long long b=length-1;
2487                 long long c=addressSpace-1;
2488                 int index=(a*b)/c; // danger!!!! int32 overflows
2489                 buckets[index]++;
2490         }
2491
2492         //                         append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
2493         writeLong(f, min);                                      // low_pc
2494         writeLong(f, max);              // high_pc
2495         writeLong(f, length);           // # of samples
2496         writeLong(f, 64000000);                         // 64MHz
2497         writeString(f, "seconds");
2498         for (i=0; i<(15-strlen("seconds")); i++)
2499         {
2500                 fwrite("", 1, 1, f);  // padding
2501         }
2502         writeString(f, "s");
2503
2504 //                         append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
2505
2506         char *data=malloc(2*length);
2507         if (data!=NULL)
2508         {
2509                 for (i=0; i<length;i++)
2510                 {
2511                         int val;
2512                         val=buckets[i];
2513                         if (val>65535)
2514                         {
2515                                 val=65535;
2516                         }
2517                         data[i*2]=val&0xff;
2518                         data[i*2+1]=(val>>8)&0xff;
2519                 }
2520                 free(buckets);
2521                 fwrite(data, 1, length*2, f);
2522                 free(data);
2523         } else
2524         {
2525                 free(buckets);
2526         }
2527
2528         fclose(f);
2529 }
2530
2531 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2532 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2533 {
2534         target_t *target = get_current_target(cmd_ctx);
2535         struct timeval timeout, now;
2536
2537         gettimeofday(&timeout, NULL);
2538         if (argc!=2)
2539         {
2540                 return ERROR_COMMAND_SYNTAX_ERROR;
2541         }
2542         char *end;
2543         timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
2544         if (*end)
2545         {
2546                 return ERROR_OK;
2547         }
2548
2549         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2550
2551         static const int maxSample=10000;
2552         u32 *samples=malloc(sizeof(u32)*maxSample);
2553         if (samples==NULL)
2554                 return ERROR_OK;
2555
2556         int numSamples=0;
2557         int retval=ERROR_OK;
2558         // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
2559         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
2560
2561         for (;;)
2562         {
2563                 target_poll(target);
2564                 if (target->state == TARGET_HALTED)
2565                 {
2566                         u32 t=*((u32 *)reg->value);
2567                         samples[numSamples++]=t;
2568                         retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2569                         target_poll(target);
2570                         usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
2571                 } else if (target->state == TARGET_RUNNING)
2572                 {
2573                         // We want to quickly sample the PC.
2574                         target_halt(target);
2575                 } else
2576                 {
2577                         command_print(cmd_ctx, "Target not halted or running");
2578                         retval=ERROR_OK;
2579                         break;
2580                 }
2581                 if (retval!=ERROR_OK)
2582                 {
2583                         break;
2584                 }
2585
2586                 gettimeofday(&now, NULL);
2587                 if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
2588                 {
2589                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
2590                         target_poll(target);
2591                         if (target->state == TARGET_HALTED)
2592                         {
2593                                 target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2594                         }
2595                         target_poll(target);
2596                         writeGmon(samples, numSamples, args[1]);
2597                         command_print(cmd_ctx, "Wrote %s", args[1]);
2598                         break;
2599                 }
2600         }
2601         free(samples);
2602
2603         return ERROR_OK;
2604 }
2605